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Test tubes with blood samples of donors that have developed antibodies against the coronavirus. Photo: Robin Utrecht/SOPA Images/LightRocket via Getty Images

The Centers for Disease Control and Prevention updated its guidance Friday evening suggesting that those who test positive for COVID-19 and recover "do not need to quarantine or get tested again for up to 3 months as long as they do not develop symptoms again."

What they're saying: "...this science does not imply a person is immune to reinfection with SARS-CoV-2, the virus that causes COVID-19, in the 3 months following infection. The latest data simply suggests that retesting someone in the 3 months following initial infection is not necessary unless that person is exhibiting the symptoms of COVID-19 and the symptoms cannot be associated with another illness."

Details: The CDC continues to recommend social distancing, mask-wearing and other precautions.

  • Several studies have found that most people who are visibly ill and test positive for the virus develop antibodies.
  • Other research has highlighted evidence that those with mild or no symptoms could have immunity for two-to-three months, but then levels drop off.

Editor's note: This story has been updated to reflect the latest CDC guidance.

Go deeper

Updated Nov 24, 2020 - Politics & Policy

Sen. Kelly Loeffler to return to campaign trail after 2nd negative test

Sen. Kelly Loeffler addresses supporters during a rally on Thursday. Photo: Jessica McGowan/Getty Images

Sen. Kelly Loeffler's (R-Ga.) campaign announced Monday that she "looks forward to getting back out on the campaign trail" after testing negative for COVID-19 for a second time, following earlier conflicting results.

Why it matters: Loeffler has been campaigning at events ahead of a Jan. 5 runoff in elections that'll decide which party holds the Senate majority. Vice President Mike Pence was with her on Friday.

Updated Nov 23, 2020 - World

Oxford University says its coronavirus vaccine is up to 90% effective

A scientist working during at the Oxford Vaccine Group's laboratory facility at the Churchill Hospital in Oxford, England, in June. Photo: Steve Parsons/Pool/AFP via Getty Images

The University of Oxford announced Monday that a COVID-19 vaccine it's developed with AstraZeneca is 70.4% effective in preventing people from developing symptoms, per interim data from Phase 3 trials.

Why it matters: The Oxford-AstraZeneca vaccine is shown to work in different age groups and can be stored at fridge temperature. It is much cheaper than other vaccines in development and is part of the global COVAX initiative, designed to ensure doses go where they're most needed.

In photos: Americans wait at food banks before Thanksgiving

Residents line up in their cars at a food distribution site in Clermont, Fla., Nov. 21. Photo: Paul Hennessy/SOPA Images/LightRocket via Getty Images

Thousands of Americans waited in long lines at food banks in the week before Thanksgiving to pick up turkeys, canned goods, broccoli and other vegetables.

Why it matters: As the holiday season approaches, families across the U.S. are in need of food assistance due to chronic unemployment and economic hardship caused by COVID-19 — and many food pantries already served an unprecedented number of people this spring.